The time required to ballast the DEEP DRILLER to survival draft, when threatened with heavy weather, while under tow, is about __________.
Official USCG Answer & Rule Citation
Correct Answer: Option A — 2 hours
Ballasting operations on Mobile Offshore Drilling Units like the DEEP DRILLER utilize high-capacity ballast pumps and gravity-flooding manifolds designed to safely transition the unit from operating draft to survival draft within approximately 2 hours.
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